Sunday, October 20, 2013 2:16:57 PM Damn, after you hit fifty, you can write a textbook on stomach acid.

Seems like you can say anything after the phrase "it is thought that ..." The brain giving the penis a check-up every three hours? Might it not be a more random thing, still related to brain activity but merely involving circulation, etc. Leaving out those old-time spicy dreams, of course.